* {
    margin: 0;
    padding: 0;
}
/* 登录按钮 */
#login {
    border: 1px solid red;
    color: red;
    border-radius: 5px;
    padding: 5px;
    margin-right: 10px;
    cursor: pointer;
}
.mask {
    width: 100vw;
    height: 100vh;
    height: 5000px;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 6;
    background: rgba(232, 216, 216, 0.4);
    display: none;
}
.alert {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    width: 400px;
    background-color: white;
    border-radius: 10px;
    padding-top: 20px;
    border-bottom: 3px solid red;
    z-index: 6;
    display: none;
}
.alert-1 {
    margin-left: 40px;
}
.alert-1>h2>span {
    float: right;
    cursor: pointer;
    display: inline-block;
    margin-right: 70px;
}
.alert-1>h2 {
    font-weight: initial;
    margin-bottom: 10px;
}
.username,.password {
    padding-left: 10px;
    border: 1px solid #666;
    outline: none;
    width: 280px;
    height: 30px;
    margin-top: 10px;
}
.alert-2 {
    margin-top: 20px;
}
.alert-2>button {
    width: 140px;
    height: 30px;
    border: none;
    text-align: center;
    color: white;
    background-color: #FE584D;
    border-radius: 20px;
    margin-left: 40px;
}
.alert-3 {
    margin: 20px 0;
}
.alert-3>span:nth-of-type(2) {
    float: right;
    margin-right: 62px;
}


/* // 超链接去下滑线 */
a {
text-decoration: none;
}
.a-1 {
color: red;
}
/* 页面头部 */
.head {
    width: 100%;
    height: 60px;
    background-color: white;
    position: fixed;
    top: 0;
    left: 0;
    border-bottom: 1px solid #c3c3c3;
}
 .header {
    margin: 0 auto;
    width: 1100px;
    height: 60px;
    /* position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%); */
    /* background-color: white; */
 }
 .head_nav {
    list-style: none;
 }

 .head_nav>li {
    float: left;
    height: 60px;
    line-height: 60px;
    color: #4c4c4c;
    margin-right: 50px;
    }
    .head_nav>li:hover {
        color: red;
        transform: scale(1.3);
        transition: .5s;
    }
 .head_nav>li>img {
     width: 100%;
     height: 80%;
     margin-top: 5%;
 }
 .head_right {
     float: right;
     line-height: 60px;
     position: relative;
 }
 .head_right>span:nth-of-type(1) {
     margin-right: 20px;
     display: inline-block;
     position: absolute;
     left: -50px;
     top: 7px;
 }
 .head_right>span:nth-of-type(2) {
    border: 1px solid #F86554;
    color: #F86554;
    padding: 5px;
    border-radius: 5px;
 }
 
 /* 页面尾部 */
        .foot {
            width: 100%;
            background-color: #505050;
        }
        .footer {
            width: 1100px;
            margin: 0 auto;
        }
        .foot-box {
            padding-top: 40px;
            height: 240px;
        }
        .foot-img1 {
            float: left;
        }

        .foot-ul {
            list-style: none;
            float: left;
            margin-left: 40px;
        }
        .foot-ul>li {
           font-size: 12px;
           margin-bottom: 20px;
           color: #999;
        }
        .foot-box>dl {
            float: left;
            margin-left: 40px;
        }
        .foot-box>dl>dt {
            color: white;
            margin-bottom: 40px;
        }
        .foot-box>dl>dt:hover {
            color: red;
            transform: scale(1.3);
            transition: .5s;
        }
        .foot-box>dl>dd {
            color: #999;
            font-size: 12px;
        }
        .foot-box>dl span {
            display: inline-block;
            width: 60px;
        }
        .foot-bottom {
            font-size: 12px;
            text-align: center;
            padding-bottom: 20px;
            color: #999;
        }
        
    
    

 
 
